Search
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Sine Cosine and TAngent of Obtuse Angles

Author:Jamie Moodie
Topic:Angles, Cosine, Sine
In this activity, you will use GeoGebra to drag point A to create each listed primary angle B. Then, use the side lengths and your calculator to determine the value of each primarytrigonometric ratio in the chart.

New Resources

  • 巧算長方形周界
  • Tangent Plane to a Sphere
  • ANGLE
  • Angle Bisector: Quick Warm Up Questions
  • Parallel Lines & Related Angles: Quick Reminders

Discover Resources

  • Robot moving on a segment
  • Forum_erf
  • Angle Bisector #1
  • Activity 10.3
  • orthocenter
  • Complements of Congruent Angles

Discover Topics

  • Curve Sketching
  • Power Functions
  • Differential Calculus
  • Square
  • Matrices
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®